123238937640390138

Names of 123238937640390138

• Cardinal: 123238937640390138 can be written as One hundred twenty-three quadrillion, two hundred thirty-eight trillion, nine hundred thirty-seven billion, six hundred forty million, three hundred ninety thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.23238937640390138 × 10¹⁷

Factors of 123238937640390138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 46595922

Divisors of 123238937640390138

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 3221401 6442802 9664203 19328406 22549807 28992609 43374509 45099614 57985218 67649421 86749018 130123527 135298842 157848649 202948263 260247054 303621563 315697298 390370581 405896526 473545947 607243126 780741162 910864689 947091894 1420637841 1821729378 2125350941 2732594067 2841275682 4250701882 5465188134 6376052823 12752105646 19128158469 38256316938 139726686667109 279453373334218 419180060001327 838360120002654 978086806669763 1257540180003981 1956173613339526 2515080360007962 2934260420009289 5868520840018578 6846607646688341 8802781260027867 13693215293376682 17605562520055734 20539822940065023 41079645880130046 61619468820195069 123238937640390138
• Sum of all divisors σ(n): 310612528043693460
• Sum of proper divisors (its aliquot sum) s(n): 187373590403303322
• 123238937640390138 is an abundant number, because the sum of its proper divisors (187373590403303322) is greater than itself. Its abundance is 64134652762913184

Bases of 123238937640390138

• Binary: 110110101110101010010100100101100100011010100110111111010₂
• Hexadecimal: 0x1B5D5292C8D4DFA
• Base-36: XPGK2DC0FEI

Squares and roots of 123238937640390138

• 123238937640390138 squared (123238937640390138²) is 15187835750731969154906140847659044
• 123238937640390138 cubed (123238937640390138³) is 1871732742976945082900000460959866435476040164108072
• The square root of 123238937640390138 is 351054038.0630738991
• The cube root of 123238937640390138 is 497640.8027382105

Scales and comparisons

• 123,238,937,640,390,138 seconds is equal to 3,918,617,013 years, 46 weeks, 6 days, 1 hour, 42 minutes, 18 seconds.
• To count from 1 to 123,238,937,640,390,138 would take you about eleven billion, seven hundred fifty-five million, eight hundred fifty-one thousand and forty-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 123238937640390138 cubic inches would be around 41470.1 feet tall.

Recreational maths with 123238937640390138

• 123238937640390138 backwards is 831093046739832321
• The number of decimal digits it has is: 18
• The sum of 123238937640390138's digits is 72
• More coming soon!